Bottle-stopper.



Patented luly 9, I90l.

R E P. P R0 ET S E m AT m On u M U 0 7 7 6 n N filed Dec. 15, 1

INVENTOR 56) ATTORNEY WITNESSE Wwl/L Tu: uonms w'zmu ca. mom-umo wAsumm'oN, o. c,

UNITED STATES PATENT OFFICE.

ARNOLD STERN, OF NEW YORK, N. Y., ASSIGNOR, BY DIRECT AND MESNE ASSIGNMENTS, TO THE ANNULO STOPPER COMPANY, OF NEW JERSEY.

'BOTTLE-STOP'PER.

SPECIFICATION forming part Of Letters Patent No. 677,900, dated July 9, 1901.

Application filed Deoember 15, 1900. Serial No. 40,030. (No model.)

To all whom it may concern:

Beit known that I, ARNOLD STERN, a citizen of the United States, residing in the borough of Manhattan, in the city of New York,county and State of New York, have invented cer-* tain new and useful Improvements in Bottle Stoppers, of which the following is a specifi cation.

My invention relates to bottle-stoppers, and its novelty consists in the construction and adaptation of the parts.

It has long been desirable to produce a noncorrosive bottle-stopper which would be as cheap as or cheaper than cork and one which would at the same time be elastic and impervious to liquids. In my invention I believe that I have produced a stopper which has all of the advantages and none of the disadvantages of cork and which at the same time is cheaper and can readily be introduced into and removed from the bottle.

It consists, in brief, of a fiat disk designed to be placed in the bottle at right angles to its longitudinal axis, so' as to close the mouth of the bottle,- and provided with a continuous external annular flange made by bending downward and outward, then upward and inward, a portion of the material of the disk to form an annulus in whole or in part, the whole being made of a diameter slightly larger than that of the aperture to be closed thereby. The stopper so formed is thus provided with a continuous cushioned edgegwhich permits of its being forced into the neck of the bottle, when the elasticity of the material of which it is composed, preferably of metal, causes it to be retained in place precisely like a cork, as similarly it conforms somewhat to the shape of the internal surface of the bottle.

In the drawings, Figure 1 is a top plan view, and Fig. 2 a side view, of my improved bottlestopper. Fig. 3 is a central longitudinal section of the neck of a bottle,showing the bottlestopper in section as it is made to approach the mouth of the bottle. Fig. 4 is a similar view showing its position after it has been further forced into'the mouth of the bottle with an inclined neck, and Fig. 5 shows its position in a bottle having a straight neck.

In the drawings, a is the disk of my improved stopper,made of flexible metal or other suitable material. At its outer circumference the material is curved downward, outward, upward, and inward to form a eontinuous external annular flange b. I prefer that the annulus should not be completely closed, on account of the tendency to buckle which results from that form of construction.

When it is designed to close a bottle with my improved stopper, it is first placed upon the rim of the mouth, as shown in Fig. 3, and a suitable plunger, provided with an under surface conforming to the upper surface of the stopper, is brought to bear upon it toward the interior of the bottle. If now the downward action of the plunger is continued, the stopper is squeezed or forced into the mouth of the bottle precisely like a cork, its lateral external surface being made to conform to stopper from the bottle, as a tool may be insorted under this overhanging edge to force the stopper upward and out of the bottle.

The stopper may be made of any suitable material, although I prefer some moderately light flexible metal like aluminium or an al- 8 5 10y of aluminium and tin. I may also coat the inner surface of the stopper with waxed paper or the like; but such refinement is not really necessary.

The simplicity of my device is its great ad vantage. It requires no gaskets to be used with it and does not require a bottle to be made to conform to its shape or the-manner of placing it in position. Any bottle having The overhanging 75' an approximately cireular from in erossseelarger in diameter than the aperture designed 10 tion may be closed with my stopper. to be closed thereby.

What I clairn as new is Witness my hand this 12th day of Decem- A bottle-stopper consisting of a disk bent ber, 1900, in the presence of two subscribing 5 downwardly and outwardly, upwardly and witnesses.

inwardly, to form a continuous surrounding H ARNOLD STERN. annular elastic flange, the edge of which is Witnesses: extended inward over, or toward the center HERMAN MEYER,

of, the disk, the whole being made slightly MABEL K. WHITMAN. 

